When using Google Books Ngram Viewer, I've discovered that the term "yeet" was utilized a thousand more times during 1650-1660 than of today. https://imgur.com/a/KYMouzr . How could this be? Did the term "yeet" have any historical meaning or context? Did it symbolize something significant of that time? What makes the term "yeet" so popular during that time?
You may be interested in this old response by /u/caffarelli about the vagaries of Ngrams, as well as this one about the word "bruh" by /u/restricteddata .
If you look at the specific uses Google is finding in the late seventeenth century, you can see that most uses are alternate spellings for "year" or "ye", in which Google's OCR is reading "r" as "t".